Re: [Emacs-diffs] master 8764544: Treat control characters in JSON strings as invalid

[Stefan Monnier]

>> >>> -  (or (char-after (point)) :json-eof))
>> >> I wonder why it used :json-eof instead of using nil ?
>> >> Any idea?
>> > Not sure--it has been there since json.el was added to Emacs.
>> Then why use 0 now instead of nil?
> Because `following-char' returns 0 at EOB. "At the end of the buffer or
> accessible region, return 0."

But it also returns 0 in other cases.  E.g. if you had changed

    (or (char-after (point)) :json-eof)
to
    (char-after)

it would give you nil at EOB (instead of 0).


        Stefan